/*-
 * ShellServiceManager.java
 *
 * $LastChangedBy:  $
 * $LastChangedRevision:  $
 * $LastChangedDate:  $
 * $HeadURL: $
 *
 * Copyright (c) 2007, Stein Gunnar Bakkeby
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Stein Gunnar Bakkeby nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.googlecode.attention.shell.services;

import java.util.EnumMap;
import java.util.ResourceBundle;

import com.googlecode.attention.util.ThreadTerminator;


/**
 * Shell service manager, contains a collection of services. The intention of
 * this class is that it should be used to obtain the services in the system.
 *
 * @author Stein Gunnar Bakkeby
 */
public class ShellServiceManager implements Runnable {

  private static ThreadTerminator<?> terminator;
  private final EnumMap<ServiceID, Service> services;
  private static ShellServiceManager instance;
  private static ResourceBundle resources;

  private ShellServiceManager(final ThreadTerminator<?> terminator) {
    ShellServiceManager.terminator = terminator;
    services = new EnumMap<ServiceID, Service>(ServiceID.class);
    services.put(ServiceID.GATEWAY, new GatewayService(terminator));
    services.put(ServiceID.STORAGE, new StorageService(terminator));
    services.put(ServiceID.FILESERVICE, new FileService(terminator));
    //services.put(ServiceID.COMMANDLINE, new CommandLine(resources, terminator));
    instance = this;
  }

  public void run() {
    for (final Service service : services.values()) {
      System.out.println(service.toString());
      final Thread serviceThread = new Thread(service);
      serviceThread.start();
      serviceThread.isAlive();
    }
  }
  
  /**
   * This will return the service with the corresponding service ID.
   * 
   * @param id The service id
   * @see ServiceID
   * @return The corresponding service
   */
  public Service getService(final ServiceID id) {
    return services.get(id);
  }
  
  /**
   * This will set the thread terminator that will be injected into every
   * service that is started.
   * 
   * @param tt The thread terminator
   */
  public static void setThreadTerminator(final ThreadTerminator<?> tt) {
    ShellServiceManager.terminator = tt;
  }
  
  /**
   * This will set the resource bundle that will be used for all services. The
   * resource bundle will be injected into all services that requires any kind
   * of resources in form of properties or language specific text.
   * 
   * @param resources A resource bundle containing language properties
   */
  public static void setResources(final ResourceBundle resources) {
    ShellServiceManager.resources = resources;
  }
  
  /**
   * This will return the singleton instance of the Shell Service Manager.
   * 
   * @return A ShellServiceManager
   */
  public static ShellServiceManager getInstance() {
    if (instance == null) {
      if (terminator == null) {
        throw new RuntimeException("Thread terminator not set!");
      }
      instance = new ShellServiceManager(terminator);
    }
    return instance;
  }
}